| 单词 |
dromaeosaurid |
| 释义 |
dromaeosaurid, n. and a. Palaeontol.
Brit. |ˌdrɒmɪəˈsɔːrɪd|, U.S. |ˌdrɑmɪəˈsɔrɪd|
Forms: 19– dromaeosaurid, 19– dromeosaurid
[‹ scientific Latin Dromaeosauridae, family name (E. H. Colbert & D. A. Russell 1969, in Amer. Mus. NovitatesNo. 2380. 43) > n.) + -idae (see -id suffix3). Compare slightly later dromaeosaur n.]
A. n. A dinosaur of the theropod family Dromaeosauridae, of the Cretaceous period, which comprised bipedal predators with forelimbs capable of grasping and a distinctive large recurved claw on the second toe.
1970Peabody Mus. Nat. Hist. Bull. Mus. 76 Microventor may be distinguished from the dromaeosaurids in the form and greater relative lengths of cervical and dorsal vertebrae. 1990P. J. Currie et al. in K. Carpenter & P. J. Currie Dinosaur Systematics (1992) viii. 110 The most common small theropod is the velociraptorine dromaeosaurid Saurornitholestes langstoni. 2000Systematic Biol. 49 469/2 Some debate exists about the sister clade of birds: dromaeosaurids.., troodontids..and a dromaeosaurid–troodontid clade..have all been suggested.
B. adj. Of or designating a dromaeosaurid.
1985D. Norman Illustr. Encycl. Dinosaurs 43/2 Relations [to Ornitholestes] may also exist with dromaeosaurid theropods. 1997New Scientist 1 Feb. 28/3 Two fossil finds, reported last year, tipped the balance further in favour of the dinosaur-bird link. The first..is an unnamed 90-million-year-old dromeosaurid dinosaur from Patagonia. 2000Systematic Biol. 49 469/2 Neither dromaeosaurid nor troodontid novelties must have arisen by the time birds diverged. |
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